Answer:
x=0, y=-12
Step-by-step explanation:
you can use substitution to solve for x
-3(x-12)=2x+36
-3x+36=2x+36
subtract 36 from both sides and add 3x to both sides
0=5x
x=0
now plug in 0 as x for either equation
y=0-12
y=-12
to check your work plug in x and y into the other equation
-3(-12)=2(0)+36
36=36
Answer:
Step-by-step explanation:
Your first equation is y=10x+20
Your slope is 10 and your y-intercept is 20 in this first equation
Your second equation after it has changed, your new equation is y=30x+45
Your slope is 30 and your y-intercept is 45 in this second equation
I hope this helps!
Answer:
x=21-5x4
x=21-20
x=1
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
The following radical phrase should be non-negative.
x - 3 ≥ 0
The correct simplification will be: (b) ab²
Here we will use the property of exponents for division of two exponential terms with same bases. The original property is : 
It means if the bases are same , then we will just subtract the exponents while dividing two terms.
Using this property:
and 
So, 
